OM System
M.Zuiko Digital ED 17mm F1.2 PRO
Micro Four Thirds Mount
M.Zuiko Digital ED 17mm F1.2 PRO — 17mm f/1.2 for Micro Four Thirds, a popular choice in the om-system lineup.
$1,199
Launch priceReleased Nov 2017
Sony
FE 50mm F1.4 GM
Sony E Mount
FE 50mm F1.4 GM — 50mm f/1.4 for Sony E, a popular choice in the sony lineup.
$1,799
Launch priceReleased Feb 2023
FE 50mm F1.4 GM is 5.3 years newer.
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Wins
M.Zuiko Digital ED 17mm F1.2 PRO
Wins
FE 50mm F1.4 GM
1 categories tied
Which would you choose?
TL;DR — Key differences
- AM.Zuiko Digital ED 17mm F1.2 PRO has lower Min focus distance (20 cm vs 41 cm)
- AM.Zuiko Digital ED 17mm F1.2 PRO has lower Weight (390 g vs 516 g)
- AM.Zuiko Digital ED 17mm F1.2 PRO has lower Diameter (68.2 mm vs 80.6 mm)
- AM.Zuiko Digital ED 17mm F1.2 PRO has lower Max aperture (Wide) (f/1.2 vs f/1.4)
- AM.Zuiko Digital ED 17mm F1.2 PRO has lower Max aperture (Tele) (f/1.2 vs f/1.4)
Key specs at a glance
Size and weight, to scale
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M.Zuiko Digital ED 17mm F1.2 PRO
⌀68 × 87 mm
390 g (0.86 lb / 13.76 oz)
Credit card
85.6 × 54 mm
for scale
FE 50mm F1.4 GM
⌀81 × 96 mm
516 g (1.14 lb / 18.20 oz)
M.Zuiko Digital ED 17mm F1.2 PRO is 9mm shorter and 12mm narrower than FE 50mm F1.4 GM.
M.Zuiko Digital ED 17mm F1.2 PRO is 126 g lighter than FE 50mm F1.4 GM.
Diameter (⌀) is the maximum barrel width; length is measured from the mount to the front of the lens.
Use-case scoring
Which one for what?
Algorithmic scores from verified specs · 10 = best in class
Why pick one over the other
Reasons to choose the M.Zuiko Digital ED 17mm F1.2 PRO
- ✓
Special elements
Adds 1 Aspherical, 1 DSA, 3 ED…
- ✓
Min focus distance
20 cm vs 41 cm — lower is better
- ✓
Weight
390 g vs 516 g — lower is better
- ✓
Diameter
68.2 mm vs 80.6 mm — lower is better
- ✓
Max aperture (Wide)
f/1.2 vs f/1.4 — lower is better
- ✓
Max aperture (Tele)
f/1.2 vs f/1.4 — lower is better
- ✓
Length
87 mm vs 96 mm — lower is better
Reasons to choose the FE 50mm F1.4 GM
- ✓
Special elements
Adds Aspherical, ED
- ✓
Custom function button
Only FE 50mm F1.4 GM supports it
- ✓
Max magnification
0.16 × vs 0.15 × — higher is better
Shared specifications
Internal focus
Both support internal focus
Weather sealing
Both support weather sealing
Control ring
Both support control ring
Pros & cons at a glance
Editorially curated highlights and trade-offs.
M.Zuiko Digital ED 17mm F1.2 PRO
Pros
- ✓Bright f/1.2 aperture for low light and subject separation
- ✓Prime design typically delivers strong sharpness and lighter weight
- ✓Weather-sealed construction for outdoor shooting
- ✓Lightweight design easy to carry all day
Cons
- –Third-party or older alternatives may offer better value
FE 50mm F1.4 GM
Pros
- ✓Bright f/1.4 aperture for low light and subject separation
- ✓Prime design typically delivers strong sharpness and lighter weight
- ✓Weather-sealed construction for outdoor shooting
Cons
- –Third-party or older alternatives may offer better value
Decided which one is right for you?
Compare live prices for the M.Zuiko Digital ED 17mm F1.2 PRO and FE 50mm F1.4 GM at major authorized retailers.
OM System M.Zuiko Digital ED 17mm F1.2 PRO
Sony FE 50mm F1.4 GM
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Full specifications
✓ = category winner
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed August 2026.